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   VI-MotionCueing &gt; <a href="motioncueing_vi-motioncueing_tuning.htm">VI-MotionCueing tuning in VI-DriveSim</a>&nbsp;&gt;</p>
      <h1 class="p_Heading1" style="page-break-after: avoid;"><span class="f_Heading1">First step: signs correction</span></h1>

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<p class="p_Normal">The very first fundamental step is to adjust the cueing output signs observing the platform movements. &nbsp;The suggested procedure to check is the following, for each DOF:</p>
<p class="p_Normal">&nbsp;</p>
<p style="text-align: justify; text-indent: 0px; line-height: 1.80; padding: 0px 0px 0px 20px; margin: 0px 0px 0px 0px;"><span style="font-size:10pt; font-family: 'Arial';color:#000000;display:inline-block;width:20px;margin-left:-20px">1.</span>The longitudinal position must move forward &nbsp;when accelerating and backward when braking;</p><p style="text-align: justify; text-indent: 0px; line-height: 1.80; padding: 0px 0px 0px 20px; margin: 0px 0px 0px 0px;"><span style="font-size:10pt; font-family: 'Arial';color:#000000;display:inline-block;width:20px;margin-left:-20px">2.</span>The lateral position must move in the same direction of the turn: if the driver turn left the platform must move left;</p><p style="text-align: justify; text-indent: 0px; line-height: 1.80; padding: 0px 0px 0px 20px; margin: 0px 0px 0px 0px;"><span style="font-size:10pt; font-family: 'Arial';color:#000000;display:inline-block;width:20px;margin-left:-20px">3.</span>The yaw angle must move clockwise observing the driver from top when turning to the right;</p><p style="text-align: justify; text-indent: 0px; line-height: 1.80; padding: 0px 0px 0px 20px; margin: 0px 0px 0px 0px;"><span style="font-size:10pt; font-family: 'Arial';color:#000000;display:inline-block;width:20px;margin-left:-20px">4.</span>The roll angle is composed by two components: actual vehicle roll and tilt coordination</p><p style="text-align: justify; text-indent: 0px; line-height: 1.80; padding: 0px 0px 0px 100px; margin: 0px 0px 0px 0px;"><span style="font-size:10pt; font-family: 'Arial';color:#000000;display:inline-block;width:20px;margin-left:-20px">a.</span>Actual vehicle roll: observing from behind, the cockpit rolls clockwise when hitting a kerb with the left wheels;</p><p style="text-align: justify; text-indent: 0px; line-height: 1.80; padding: 0px 0px 0px 100px; margin: 0px 0px 0px 0px;"><span style="font-size:10pt; font-family: 'Arial';color:#000000;display:inline-block;width:20px;margin-left:-20px">b.</span>Tilt coordination: observing from behind, the cockpit rolls clockwise when turning to the left.</p><p style="text-align: justify; text-indent: 0px; line-height: 1.80; padding: 0px 0px 0px 20px; margin: 0px 0px 0px 0px;"><span style="font-size:10pt; font-family: 'Arial';color:#000000;display:inline-block;width:20px;margin-left:-20px">5.</span>The pitch angle is composed &nbsp;by two components: actual vehicle pitch and tilt coordination.</p><p style="text-align: justify; text-indent: 0px; line-height: 1.80; padding: 0px 0px 0px 100px; margin: 0px 0px 0px 0px;"><span style="font-size:10pt; font-family: 'Arial';color:#000000;display:inline-block;width:20px;margin-left:-20px">a.</span>Actual vehicle pitch: observing the cockpit from the right side, the cockpit pitches clockwise while braking and counterclockwise while accelerating;</p><p style="text-align: justify; text-indent: 0px; line-height: 1.80; padding: 0px 0px 0px 100px; margin: 0px 0px 0px 0px;"><span style="font-size:10pt; font-family: 'Arial';color:#000000;display:inline-block;width:20px;margin-left:-20px">b.</span>Tilt coordination, the sign is correct if:</p><p style="text-align: justify; text-indent: 0px; line-height: 1.80; padding: 0px 0px 0px 108px; margin: 0px 0px 0px 72px;"><span style="font-size:10pt; font-family: 'Arial';color:#000000;display:inline-block;width:20px;margin-left:-20px">i.</span>under braking, increasing the value of the parameter the nose of the cockpit points down more than actual vehicle pitch;</p><p style="text-align: justify; text-indent: 0px; line-height: 1.80; padding: 0px 0px 0px 108px; margin: 0px 0px 0px 72px;"><span style="font-size:10pt; font-family: 'Arial';color:#000000;display:inline-block;width:20px;margin-left:-20px">ii.</span>under acceleration, increasing the value of the parameter the nose of the cockpit points up more than vehicle pitch.</p>
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